If this was paired with something like a cafe trolley service then it could be quite nice. Chill little rooms that are peaceful and every hour on the hour the offer of green tea. Little oases in which to read, write, or code with minimal other distractions. My partner is an academic and is seeking a retreat space bookable on a weekly basis (not hourly) in which to have silence and write with minimal disturbance (libraries are too bustling, coworking spaces too noisy).
The first thing that comes to mind though: How do you stop this being used as a place for drugs and sex? How do you balance the low distraction and privacy with a basic need to prevent the spaces being used in a way that creates risk for the business?
Also how do you make this affordable given the places with density are also the places with high rents?